Four Seasons Essentials RV King Size Waterproof Mattress Protector

In this review of the Four Seasons Essentials RV King Size Waterproof Mattress Protector the bottom line is simple: this fitted, bamboo-blend cover is for sleepers who need reliable liquid protection and a softer, breathable surface without added crinkle or bulk. It is especially useful for RV beds, bunk setups, or family bedrooms where spills, pet hair and allergens are common. The single biggest reason to buy is its combination of a 100% waterproof inner lining and a cooling viscose surface that keeps the bed protected while remaining comfortable to sleep on.

Key Features

• Material blend: The 55% polyester, 45% viscose derived from bamboo fabric provides a soft, cooling top layer that feels gentle against skin.
• Fitted sheet style: Elastic all around fits mattresses up to 18 in thick so the cover stays snug on RV and residential king size beds.
• Waterproof lining: A polyurethane inner membrane blocks liquids and moisture to protect the mattress core from spills and accidents.
• Breathable construction: Quilted jacquard with 3D airflow offers breathability so the surface does not trap heat while remaining waterproof.
• Allergen protection: The impenetrable cover helps keep out dust and pet dander, which can improve sleep for allergy sufferers.
• Easy care: Machine washable fabric holds up to cleaning and is designed for daily use without losing fit or softness.

Who It's For

The protector is a good match for RV owners, parents, and pet owners who need a durable waterproof barrier while preserving mattress comfort and breathability. It is also suitable for people wanting allergen relief without switching to a heavy encasement.

Shoppers who need an ultra-thin or specialized cooling system for very hot sleepers should compare other cooling-specific pads; likewise, those seeking a full zip encasement for bed bug protection should look at encasement-style products instead of a fitted protector.

Pros & Cons

Pros

• Soft, cooling viscose surface makes the bed feel more comfortable while protecting it.
• Fits up to 18 in mattresses with full elastic for a secure fit on RV and king beds.
• Quilted jacquard with 3D airflow keeps the cover breathable and noiseless during sleep.
• Machine washable and durable for everyday use and easy maintenance.

Cons

• Some users report mixed experiences with waterproofing under heavy saturation, so very large spills may still be a concern.

Specifications

Brand	Four Seasons Essentials
Material	55% Polyester, 45% Viscose derived from bamboo
Fit style	Fitted sheet style with elastic all around
Max mattress depth	Fits up to 18 in
Waterproof	Polyurethane inner lining, 100% waterproof
Surface	Ultra soft quilted jacquard with 3D airflow
Care	Machine washable

Our Verdict

The Four Seasons Essentials RV King size protector is a practical choice for anyone needing reliable liquid and allergen protection with a soft, cooling surface. Its fitted design, breathable quilting, and washable construction make it a good value for RV beds, family bedrooms, and pet households that want day-to-day protection without sacrificing comfort.

Frequently Asked Questions

Will this fit a deep mattress over 12 in?
Yes, the fitted elastic is designed to accommodate mattresses up to 18 in deep.

Is the protector noisy when you move?
No, the polyester and viscose top with quilting is designed to be completely noiseless so you should not hear crinkling under sheets.

Can it be machine washed?
Yes, the protector is machine washable and intended to withstand regular cleaning for lasting use.